Which is the Largest Cruise Ship in the World?

"Allure of the seas" is considered as the World's Largest Cruise Ship, which is dubbed by Royal Caribbean's Fleet. This ship has 2700 rooms and 16 decks. It has the capacity of approx 6300 guests at a time, Its weight is about 252282 tonnes, you might be surprised to know that ship is taller than the Eiffel Tower by 37.7 meters.